Senior Software Engineer (Data)

Vianttechnology; Irvine (CA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Fully paid health insurance

Paid parental leave

Unlimited PTO

Job summary

Vianttechnology in Irvine, California, is seeking a Senior Software Engineer to join their Data team. You will build and optimize data systems that power their AI-driven DSP, working with large-scale datasets in a cloud environment. Collaborating closely with cross-functional teams, you'll ensure high-quality data solutions.

The role requires 5+ years of software engineering experience and proficiency in programming languages such as Python, Java, or Go. Attractive perks include fully paid health insurance and unlimited PTO.

Qualifications

• 5+ years of experience in software engineering, ideally focusing on data systems.
• Proficiency in one or more programming languages such as Python, Java, or Go.
• Experience with cloud platforms like GCP and AWS.

Responsibilities

• Design, develop, and deploy data pipelines and backend services.
• Build and maintain ELT workflows using modern data processing tools.
• Optimize ETL processes and queries for performance and cost efficiency.

Skills

Software engineering

Data systems

Programming (Python, Java or Go)

SQL

Cloud platforms (GCP, AWS)

APIs and microservices

Job description

WHAT YOU’LL DO

As a Senior Software Engineer on Viant’s Data team, you will build and optimize the data systems that power our AI-driven DSP, enabling real-time decisioning and measurement across CTV and omnichannel advertising. You’ll work with large-scale datasets and distributed systems in a multi-region cloud environment spanning GCP and AWS.

This role is ideal for an engineer who enjoys solving complex data challenges, improving system performance, and contributing to scalable infrastructure. You’ll collaborate closely with cross‑functional teams while delivering reliable, efficient, and high‑quality data solutions.

THE DAY-TO-DAY

• Design, develop, and deploy data pipelines and backend services in a cloud environment
• Build and maintain ELT workflows using modern data processing tools and frameworks
• Optimize ETL processes and queries for performance, scalability, and cost efficiency
• Troubleshoot data and system issues in production environments
• Collaborate with product, engineering, and operations teams to deliver features and improvements
• Contribute to system design discussions and implement scalable solutions
• Ensure data quality by identifying inconsistencies and resolving issues
• Support ongoing improvements to system reliability, performance, and maintainability

GREAT TO HAVE

• 5+ years of experience in software engineering, with a focus on data systems or backend development
• Proficiency in one or more programming languages such as Python, Java, or Go
• Experience with GCP (including BigQuery) or other cloud data platforms
• Strong SQL skills and experience working with large-scale datasets
• Familiarity with building APIs, microservices, or distributed systems
• Understanding of ETL/ELT processes and data pipeline architecture
• Experience troubleshooting production systems and performance issues
• Strong problem‑solving skills and ability to work in a fast‑paced environment

LIFE AT VIANT

Investing in our employee’s professional growth is important to us, but so is investing in their well‑being. That’s why Viant was voted one of the best places to work and some of our favorite employee benefits include fully paid health insurance, paid parental leave and unlimited PTO and more.

Base compensation range: $120,000 - $180,000

In accordance with California law, the range provided is Viant’s reasonable estimate of the compensation for this role. Final title and compensation for the position will be based on several factors including work experience and education.

Viant is an equal opportunity employer and makes employment decisions on the basis of merit. Viant prohibits unlawful discrimination against employees or applicants based on race (including traits historically associated with race, such as hair texture and protective hairstyles), religion, religious creed, color, national origin, ancestry, physical disability, mental disability, medical condition, genetic information, marital status, sex, reproductive health decision making, gender, gender identity, gender expression, age, military status, veteran status, uniformed service member status, sexual orientation, transgender identity, citizenship status, pregnancy, or any other consideration made unlawful by federal, state, or local laws. Viant also prohibits unlawful discrimination based on the perception that anyone has any of those characteristics, or is associated with a person who has or is perceived as having any of those characteristics.